Apparatus for treating sewage.



Pate nted on. 3, I899. n. CAMERON, F. J. comm-a. A. J. MARTIN. APPARATUSFOR TREATING SEWAGE.

(Application filed Nov. 26, 1898.

(N6 Model.) 2 Sheets$heet Mill THE "ohms warms co. PHDTOJJTHOHWASHINGTON. a. c.

Patented Oct. 3, I899.

D. CAMERON, F. J. COMMIN 8L A. J. MARTIN. APPARATUS FOR TREATING SEWAGE.

(Application filed Nov. 26, 1898.;

(No Model.) 2 Sheets-Shet 2,

'ruz' norms PETERS 5a., moru-uma. wnsmmrrcu, c. c.

UNITED STATES PATENT Fries,

DONALD CAMERON, FREDERICK J. COMMlN, AND ARTHUR J. MARTIN, OF EXETER,ENGLAND.

APPARATUS FOR TREATING SEWAGE.

SPECIFICATION forming part of Letters Patent No. 634,426, dated October3, 1899.

Original application filed May 2, 1898, Serial No. 679,522. Divided andthis application filed November 26, 1898. Serial No. 697,498. (Nomodel.)

To all whom it may concern:

Be it known that we, DONALD CAMERON, FREDERICK JAMES OOMMIN, and ARTHURJOHN MARTIN, subjects of the Queen of Great Britain, residing at EXeter,in the county of Devon, England, have invented new and usefulImprovements in Apparatus for the Treatment of Sewage and other Liquids,(for which we have made application for Letters Patent in Great Britain,No. 27,349, dated November 22, 1897; in France, No. 264,570, dated May18, 1898; in Belgium, No. 135,680, dated May 18, 1898, and in Germany,dated May 20, 1898, and September 19, 1898,) of which the following is aspecification.

This case is a division of our application, Serial No. 679,522, filedMay 2, 1898.

This invention relates to apparatus for antomatically effecting thedischarge of liquid from chambers or receptacles and the delivery ofliquid to other chambers or receptacles which it is desired to fill. Ithas particular reference to filters for treating sewage or sewageeffluent, in connection with which it wil be hereinafter described.

We will now proceed to describe our invention in connection with theaccompanying drawings, in which Figure 1 is a longitudinal sectionshowing an arrangement in which the pressure of the liquid when itreaches a certain desired height is employed to actuate the valves ofthe filters in connection with which the apparatus is used, and Fig. 2is a plan view of same. Fig. 3 is a plan view showing the abovearrangement applied to a set of four filters.

According to the part of our invention illustrated in Figs. 1 and 2 thenecessary movement for operating the valves is obtained byarranging thedischarge-valve from each chamber to open outward, the opening beingeffected by the pressure of the liquid in the chamber when same hasrisen to a certain desired height. The height to which the liquid willrise before it will open the valve may, as shown, be regulated by aweight 26, applied to the valve either directly or otherwise.

It will be convenient to arrange the chambers in pairs, with the outletsfrom each pair adjacent to one another, and to connect the two dischargevalves 1 and 2 by links 27 and a lever 25 or otherwise, so that theopening of one valve shall close the other. The weight 26, which keepsthe valves closed, may be conveniently attached to an arm 28 on thelever 25 and projecting upward at right angles to it. I

It will be understood that the valves 1" and 2 controlling the supply totwo filters or chambers whose discharge-valves 1 and 2 are connected asdescribed, may be operated by a lever 29, mounted on the same shaft 6 asthat which carries the lever 25, connecting the discharge-valves, orthey may be mounted on lever 25, or, if desired, the shaft carrying thelever operating the supply-valves may be connected with the leveractuated by the discharge-valves by means of connecting-rods orotherwise. The flow of liquid to the filters or chambers may, however,be controlled in any suitable manner, the essential point of this partof our invention being that the discharge-valve of a filter is opened bythe pressure of liquid in the latter when such liquid reaches a certaindesired level, thus discharging such filter, and at the same time by anysuitable means opening the supply to another filter or chamber which isempty.

In order to secure the complete opening of the valves, these may beformed as pistons within cylinders 30, such cylinders extending so farin the direction in which the valves travel that the latter will notleave them until they have moved so far that the weight 26 will aidinstead of opposing their motion. The opening and .closing of the valvesmay be regulated, if necessary, by dash-pots 31 or other suitabledevices, and guides 32 are preferably provided for keeping such valvesin their proper positions relative to their cylinders after they haveleft the latter. Dashpots may also be used in connection with otherforms of our apparatus in which it is desired to secure a gradualopening or closing of the valves.

here more than two chambers are used, it will be convenient to be ableto discharge one chamber of a pair without at once filling the other, aswould happen if the flow to the latter were controlled only by thesupplyvalve which is opened on the discharge of the former. To this endwe may, as shown in Fig. 3, place additional valves l n on thesupply-pipes 1 2 3 at to the filters or chambers 1 2 I} 4-, each of suchadditional valves being actuated by the discharge of one of the filtersor chambers belonging to some other pair. Any chamber will then receiveliquid only when both supply-valves (which we will hereinafter refer toas primary and secondary valves, respectively) are open and not wheneither or both of them are closed.

In Fig. 3 it will be seen that a set of four filters is shown, the leveractuated by the dis-' charge-valves for filters] and 2 being mounted onthe same shaft 6 as thelevers carrying the secondary supply-valves forthese filters and the primarysupply-valves for filters 3 and 4, whilethe lever actuated by the dischargevalves of filters 3 and a is mountedon the same shaft (5 as the levers carrying the secondary supply-valvesfor these filters and the primary supply-valves for filters 1 and 2. Inorder to describe the operation of this arrangemen t,we will take, forexam ple, the case where filter l is the next to be filled, thedifferent supply-valves being then arranged as follows: Secondary valves1 and t" will be opened, so that the valves 2" and 3 will be closed,while of the primary valves 1* and are opened MK 2* and a closed. Inthis position of the parts the discharge-valves 2 and 3 are open and 1and 1 closed. It will therefore be seen that in this position filter 1will be filling from the main supply 5 through primary valve 1 passage1, secondary valve 1.", and so through the continuation of passage 1 tofilter 1, while if there is any liquid in filter 3 it will be dischargedthrough valve On filter 1 becoming filled to the desired height thepressure of the liquid in same will raise discharge-valve 1, therebyreversing the position of all the valves carried by the shaft (3, towhich it is connected, so that the secondary supply-valve 1 of filter 1will be closed and the secondary supply-valve 2 of filter 2 opened. Atthe same time the dischargevalve 1 of filter 1 will be opened anddischarge-valve 2 of filter 2 closed; also, the primary supply-valve offilter 3 will be closed and the primary supply-valve t of filter 4opened. The valves connected to the shaft (5, actuated by thedischarge-valves of the filters 3 and 4t, will not be operated by thismovement, so that a passage will have been opened through primary valve45 passage 4E, and secondary valve i to filter 1-, which will thus befilled in its turn, filter 1 in the meantime being discharged. On filter4 becoming full its discharge-valve 4 will be operated, altering thepositions of the valves connected to the shaft 6, so that the effluentwill now be able to pass to filter 2 through primary supply-valve 2",passage 2, and the secondary supply-valve 2, filter ii. being dischargedduring the filling of filter 2. On filter 2 discharging the shaft U willbe operated by the discharge-valve 2 of this filter, and the valvesconnected to it being thus altered in position filter 3 will be filledthrough primary supply-valve passage 3, and secondary supply-valve 3".

As above described, each filter is discharged immediately it becomesfull; but if it should be found advisable to allow the effluent toremain in the filter for a short time this can be effected by checkingthe movement of the opening of the discharge-valve by means of adaslrpot or other suitable device attached to one of the levers, asshown and described in connection with the arrangement illustrated inFigs. 1 and 2.

\Vhat we claim as our invention, and desire to'secure by Letters Patent,is

1. The combination of a receptacle for containing liquid provided with adischarge-orifice, a valve for closing said orifice adapted to be openedby the pressure of theliquid in said receptacle when said liquid risesto the desired height, and means for holding said valve in open positionuntil all the liquid therein has been discharged.

2. The combination of a receptacle having a discharge-orifice, a valvefor closing said orifice adapted to be opened by the pressure of theliquid when it rises to a determined height, and means operated by thesupply mechanism of another receptacle for closing said discharge-valvepreparatory to the filling of the receptacle.

3. The combination of a receptacle adapted to be emptied after it isfilled to a certain height, a valve adapted to be opened by the pressureof the liquid in the receptacle, said valve having a weight adapted toresist the pressure until the liquid rises to the desired height, andmeans for filling said receptacle, said means being operated by themotion imparted by said discharge-valve.

4. The combination of a receptacle adapted to be emptied after it hasbeen filled to a certain height, a valve arranged to be opened by thepressure of the liquid in the receptacle, said valve being provided withweights adapted to resist the pressure until the liquid rises to thedesired height, and a dash-pot for regulating the opening of said valve.

5. The combination of a receptacle having a discharge-orifice, acylinder disposed in said receptacle, a lever, a piston-valve connectedto said lever and working within said cylinder, said valve being openedby the pressure of the liquid in the receptacle, a weight disposed onsaid lever for regulating the opening of the valve, and enabling thevalve to remain in the cylinder until said weight aids in its openingmovement.

0. The combination of a plurality of receptacles adapted to bealternately filled to a certain height and then emptied, one or morevalves for each receptacle arranged to open IIO receptacle, and a leverwhereby the opening posed on the supply-pipe of each receptacle, of onevalve is made to close that of the other. the opening and closing ofsaid valve being outward by the pressure of the liquid in saididischarged, and an additional valve dis- 1 7. The combination of a setof receptacles" controlled by the filling of other receptacles. I 5

5 adapted to be filled and dischar ed two sup- T p v ply-valves for eachreceptacle, oth of which i must be opened before the supply can take I'fiR J MARTIN place, said valves being controlled by the overflow from aseparate receptacle. l \Vitnesses:

1o 8. The combination of aplurality of recep- ALBERT ZELLEY,

tacles adapted to be successively filled and H. E. BARTLETT.

